If you want the battle royale experience but don't want it to be kid-/family-friendly, then you'll want to check out Fall Guys: Ultimate Knockout. The game is coming to the Sony PlayStation 4 and Steam on August 4.
Mediatonic and Devolver originally wanted to have 100 players per round. Unfortunately, you're "only" getting 60 players per round. Will it still be as manic? We assume so. The game revolves around a collection of mini-games where only one player will emerge the victor. It has that tension of a battle royale game, but it is something you would be more comfortable having your kid play.
Source: Engadget